1107results about "Hot-water central heating" patented technology

The invention relates to the technical field of heat supply control, in particular to a heat supply secondary network branch line intelligent hydraulic equilibrium method and device, a medium and a product. The method comprises the following steps: constructing a branch topological graph of a heat supply secondary network in a target heat supply area; the environment temperature is obtained in real time, the heat supply station is controlled to supply heat to each heating single body in the target heat supply area based on the dynamic flow control strategy, and the node flow and the node temperature of each node in the branch topological graph are collected; constructing a branch heat supply loss model of the branch topological graph based on the environment temperature, the node flow and the node temperature; the monomer temperature and heat supply backflow data of each heating monomer are obtained, and a monomer heating model is constructed for each heating monomer based on the environment temperature, the monomer temperature and the heat supply backflow data; and determining a flow regulation and control strategy based on the monomer heating model and the branch line heat supply loss model, and adjusting the monomer heat supply flow of the heat supply secondary network based on the flow regulation and control strategy. According to the method, heat supply hydraulic balance can be achieved through precise flow regulation and control precision.

A gas and steam power generation afterburning type heat-electricity decoupling system and a working mechanism thereof, characterized in that the system comprises a gas turbine power generation system, a power transmission and transformation system, a molten salt heat storage system and a steam power generation system; the gas turbine power generation system is connected with the molten salt heat storage system through a flue gas pipeline; the molten salt heat storage system is connected with the power transmission and transformation system through a cable; the gas turbine power generation system is connected with the power transmission and transformation system through a cable; the molten salt heat storage system is connected with the steam power generation system through a main steam pipeline and a backwater pipeline; and the steam power generation system is connected with the power transmission and transformation system through a cable. The system can realize complete heat-electricity decoupling in a green energy storage system, realize the functions of self-supply of external power, storage of green electricity or heat supply, increase the accommodation capacity of a power grid to green electricity, and enhance the stability, flexibility and safety of a new power system.

The invention provides a combined heat and power system and a control method thereof, and relates to the technical field of combined heat and power. The system comprises a fuel gas heat and power cogeneration subsystem, a heat supply subsystem and a fused salt heat storage subsystem, the fuel gas heat and power cogeneration subsystem is used for fuel gas power supply, the fused salt heat storage subsystem can convert solar energy and / or flue gas generated by power supply into heat energy of high-temperature fused salt to be stored, and the heat supply subsystem conducts primary heating on heat supply return water through geothermal energy; and flue gas and / or high-temperature fused salt generated by power supply are / is used for conducting secondary heating on heat supply return water. Geothermal energy, solar energy and fused salt heat storage are coupled, and renewable energy sources are fully utilized for heat and power cogeneration, so that the power supply requirement and the heat supply requirement of a user are met. In the ground source heat pump unit, primary heating is conducted through geothermal energy, heat supply return water is heated into warm water, then the warm water is secondarily heated into hot water through smoke in the gas heat and power cogeneration system, the compression ratio of a compressor in a ground source heat pump can be reduced, and power consumption of the compressor is reduced.

The invention discloses an air source heat pump unattended control method and system, and relates to the field of equipment control, and the method comprises the steps: predicting a load demand according to an environment parameter and a building load parameter, and calculating a target water supply temperature based on the load demand; sorting the heat pump units according to the equipment operation duration parameters, distributing a temperature deviation value for each heat pump unit, and calculating the target water supply temperature and the temperature deviation value corresponding to the heat pump unit to obtain the personalized set temperature of each heat pump unit; a starting instruction sequence is generated according to a preset starting condition and the personalized set temperature, and after the water return pressure parameter reaches a preset parameter threshold value after the circulating water pump is started, all the heat pump units are sequentially started according to the personalized set temperature sequence; and a make-up pump and a pressure release valve are controlled according to the return water pressure parameter and the liquid level parameter, and the temperature deviation value of each heat pump unit is adjusted according to the change of the environment parameter and the building load parameter. By implementing the method, the balance of equipment loads in the multi-unit system can be improved.

The application discloses a supplemental combustion type flue gas molten salt heat exchanger and a working mechanism thereof, characterized in that: a supplemental combustion device is added in the upstream of a flue gas molten salt heat exchanger, the supplemental combustion device is connected with the flue gas molten salt heat exchanger through a flue, and a supplemental combustion type flue gas molten salt heat exchange integrated device is formed; the device comprises a supplemental combustion device or a supplemental combustion device, and a first-stage flue gas molten salt heat exchange component. The application can realize the functions of more uniform and efficient supplemental combustion heat transfer in the flue gas, realize a safer ignition mode of the supplemental combustion gas or the mixed body of the atomized supplemental combustion gas and liquid (or gas powder) outside the flue, realize the function of more convenient monitoring of the supplemental combustion, realize the complete decoupling of heat and electricity in the combustion engine power generation heat supply energy storage system, and realize the functions of self-supply of external power, heat storage or heat supply of the system.

The present application discloses a control method for an environmental conditioning system, an environmental conditioning system, and a storage medium. The method comprises: the environmental conditioning system comprises an indoor end device. The method comprises: acquiring a thermal storage period; and when the current moment is within the thermal storage period and the indoor temperature of an indoor space where the indoor end device is located satisfies a thermal storage condition, controlling the environmental conditioning system to operate in thermal storage.

The embodiment of the invention provides a multi-steam-source cooperative frequency modulation combined heat and power generation system and a control method. The system comprises a boiler, a high-pressure cylinder, an intermediate-pressure cylinder, a low-pressure cylinder, a power generator, a multi-stage regenerative heater, a heating system and a heating steam supply pipeline. A main steam outlet of the boiler is connected to the high-pressure cylinder through a main steam pipeline, a steam exhaust port of the high-pressure cylinder is connected to the intermediate-pressure cylinder through a pipeline, a steam exhaust port of the intermediate-pressure cylinder is connected to the low-pressure cylinder through a pipeline, and a steam exhaust port of the low-pressure cylinder is connected to the generator through a pipeline. A condensate water outlet of the medium-pressure cylinder is communicated to a condensate water inlet of the boiler through a first condensate water pipeline; the heating system is communicated with a steam exhaust port of the medium-pressure cylinder through a heating steam supply pipeline; the multi-stage regenerative heater is arranged on the first condensate water pipeline and connected with the high-pressure cylinder and / or the intermediate-pressure cylinder through steam extraction pipelines, and steam extraction adjusting valves are correspondingly arranged on the steam extraction pipeline between the high-pressure cylinder and the multi-stage regenerative heater and / or the steam extraction pipeline between the intermediate-pressure cylinder and the multi-stage regenerative heater.

The invention discloses a heat supply network source side renewable energy source regulation and control method and system, a medium and a product, and relates to the technical field of renewable energy source integration and heat supply. According to the method, the regulation and control system collects the real-time water return temperature of the primary side main water return pipe, the target water supply temperature of the primary side main water supply pipe and the outlet water temperature of the renewable energy source branch to determine the physical topological structure of the renewable energy source branch connected to the source side of the urban heat supply network, and correspondingly adjusts the valve opening degree of the multi-way valve set to be connected with the flow path. According to the self-adaptive heat supply network source side renewable energy source regulation and control method, the access mode of the renewable energy source on the urban heat supply network source side can be flexibly adjusted according to the output change of the renewable energy source, invalid circulation is avoided while the heat exchange effect is guaranteed, and therefore the utilization efficiency of the renewable energy source is improved.

The invention relates to a heat pump device that makes it possible to utilize waste heat from technical processes or from the environment to simultaneously generate useful steam (12) and useful heat. The heat pump device comprises a heat pump module (1), a low-pressure steam generator (2) for generating low-pressure steam (11), a steam jet compressor (3) for generating useful steam (12) from high-pressure steam (10) and the low-pressure steam (11), and a first heat exchanger (4) for providing the useful heat. The heat pump device is suitable for applications where there is a simultaneous demand for both steam and heat.

The embodiment of the invention provides a flywheel direct-driven cogeneration unit dynamic adjusting system and a control method thereof, in the embodiment of the invention, a magnetic suspension technology is adopted to eliminate friction of a traditional mechanical bearing, and quick starting and stopping of the rotating speed of a flywheel are realized; the high-temperature superconducting magnetic clutch achieves instantaneous mechanical coupling / decoupling of the flywheel and the circulating pump through the zero resistance characteristic, and the response time is short. The frequency modulation requirement of a new energy power grid can be matched, and meanwhile hard constraint of thermal load fluctuation on electric energy output is avoided. The mechanical direct-drive path directly utilizes the kinetic energy of the flywheel to drive the circulating pump, so that a multi-stage energy conversion link in a traditional mode is omitted; the electric adjusting path realizes bidirectional power exchange between the flywheel and a power grid through an energy interface device, and the loss of an inverter is reduced; and the high-temperature superconducting magnetic clutch realizes zero-energy-loss transmission in a coupling state. The magnetic suspension flywheel set adopts a non-contact suspension technology, so that mechanical wear is eliminated; the high-temperature superconducting magnetic clutch achieves non-contact transmission through magnetic coupling, and friction loss is avoided.

The invention discloses a floor heating structure with a phase change material layer and a preparation method of the floor heating structure, and belongs to a floor heating structure, the floor heating structure comprises a base material layer, the phase change material layer, an auxiliary heat conduction layer and a floor surface layer from bottom to top in sequence; a metal heat-conducting net is embedded into the lower part of the base material layer; the phase change material layer comprises the following components in percentage by weight: 53%-58% of methyl laurate, 30%-35% of n-decanol, 5%-8% of nano aluminum oxide, 4%-6% of polyvinyl alcohol and 0.5%-1.5% of carboxymethyl cellulose. Solid-liquid phase change is carried out through the phase change material layer, redundant heat is absorbed, latent heat is released when a heat source is shut down, and therefore frequent starting and stopping of the heat source are reduced, and energy consumption is reduced. According to the multi-layer heat conduction design, through collaborative optimization of the metal heat conduction net and the auxiliary heat conduction layer, the heat efficiency of the floor heating structure is further improved, the heat response time is shortened, the latent heat characteristic of the phase change material is utilized, the heat buffering effect can be achieved in the floor, the heating temperature fluctuation range is reduced, and the heating comfort is improved.

A system includes: a heat generator obtaining heat from a heat source and having a generator outlet port and a generator return port; a central heating circuit having a heating feed port and a heating return port; a tank having a top portion and a bottom portion, the tank containing a heat storing medium; a first tapping coil immersed in the heat storing medium in the bottom portion of the tank; and a second tapping coil immersed in the heat storing medium in the top portion of the tank The heat generator, second tapping coil, central heating circuit, and first tapping coil are fluidly connected in series to allow fluid to flow from the heat generator via at least one of the second tapping coil, the central heating circuit, and the first tapping coil back to the heat generator The system includes first, second and third three-way valves.

The invention provides an industrial park centralized heat supply method and system based on waste heat recovery, and the system comprises a waste heat collection module, a heat storage module, a heat supply pipe network and an intelligent dispatching center, a heat source outlet of the waste heat collecting module is connected with a heat source inlet of the heat storage module and a heat source inlet of the heat supply pipe network. A heat source outlet of the heat storage module is connected with a heat source inlet of the heat supply network; the intelligent dispatching center is connected with the waste heat collection module, the heat storage module and the heat supply pipe network. According to the invention, a cheap clean heat source is provided for an industrial park, the regional heat supply cost is greatly reduced, environmental thermal pollution and carbon emission are reduced by effectively utilizing waste heat, double improvement of economic benefits and environmental benefits is realized, and an effective technical path is provided for industrial green low-carbon development.

The invention provides a compound evaporator coupled with multiple heat sources, and a heat pump system thereof. The use efficiency of a heat pump and the energy utilization rate are improved while the coupled use of the multiple heat sources is achieved; meanwhile, flue gas waste heat can be recycled, and purification is achieved; and the side of the evaporator is prevented from being frosted effectively. The compound evaporator comprises a shell, and flanges arranged at the two ends of the shell; the shell comprises an outer shell and an inner shell; a spiral refrigerant flow channel is arranged in a clearance between the outer shell and the inner shell; an inside cavity of the inner shell forms a coupled working medium flow channel, and the two ends of the inner shell are provided witha coupled working medium inlet and a coupled working medium outlet separately; the outer side of the outer shell is provided with a plurality of flue gas cooling fins, and a flue gas channel used forheat exchange is formed between the adjacent flue gas cooling fins; and the two ends of the outer shell are separately provided with a refrigerant inlet and a refrigerant outlet which communicate withthe refrigerant flow channel.

A heat and power system (1) for a building (2) is disclosed. The system (1) comprises: power units (3), supplementary heat units (5), attachment elements (7) and an edge element (9). The power units (3) and the supplementary heat units (5) are arranged to cover the whole outer surface (4) of the building (2), when both being attached to the attachment elements (7) and to the edge element (9). The edge element (9) and the elongated attachment elements (7) are configured to create a number of channels (13) delimited by the outer surface (4) of the building (2) and by the power units (3) and by the supplementary heat units (5). The system (1) further comprises: an inlet (15) and an outlet (17) for the gaseous medium to be transported in and out from the system (1) while being heated by solar radiation or while being cooled. A building (2) comprising a heat and power system (1) is also disclosed.

The invention provides a redundant submerged arc furnace multi-source waste heat heating method and system based on intelligent management, and relates to the technical field of industrial waste heat heating control. According to the method, an operation data set is constructed by collecting the operation states of main steam, circulating cooling water, a heating pipe network and a pump set of a submerged arc furnace waste heat boiler, the multi-source waste heat available heat supply capacity is evaluated, the heat use requirement of a user and the target water supply temperature are determined, and a composite heat supply mode, a single heat source redundancy mode or a cascade quality-divided heat supply mode is selected in combination with the equipment health state; cooperative control and main-standby switching are carried out on the valve and the pump set, closed-loop correction is carried out based on temperature difference and pressure difference feedback, and stable, efficient and continuous utilization of the multi-source waste heat of the submerged arc furnace in a heating scene is achieved.

The present invention relates to the technical field of heating network regulation. Disclosed are an intelligent heating network operation and regulation system and method. A behavior collection module deploys several heating regulation detection points on a heating pipe network to collect heating-influencing behaviors at each heating regulation detection point; a behavior analysis module separately performs clustering on each heating-influencing behavior to determine behavior clusters, analyzes each behavior cluster, and obtains a target reference behavior cluster on the basis of the analysis results; a first calculation module collects real-time feature data of the heating pipe network, performs analysis, and calculates an initial heating load of the heating pipe network on the basis of the analysis result; and a second calculation module calculates a correction factor of the heating pipe network on the basis of the target reference behavior cluster, and corrects the initial heating load on the basis of the correction factor, so as to obtain a target heating load. The present invention can monitor the operation state of a heating pipe network in real time, automatically analyze heating variations, and quickly and accurately set a heating load, so as to achieve energy conservation and emission reduction, improve the user satisfaction, and reduce the operation and maintenance costs.

The invention relates to a heating device (200), in particular a hybrid heating device, designed for temperature control of at least one room and / or a utility fluid in a building. The heating device (200) comprises an encapsulated air / exhaust gas flow duct (204) with a heat generator (202) arranged therein. The flow duct (204) is configured to connect the heat generator (202) to an external environment (12) of the building in which the heating device (200) is installed, via air (16) and / or exhaust gas (18). The heating device (200) further comprises a heat pump heat exchanger (332), which is configured to connect refrigerant (12) to a heat pump device (300), in particular an outdoor unit (310) of a heat pump device (300).It is proposed that the heat pump heat exchanger (332) is arranged in a heat exchanger housing (334), wherein the heat exchanger housing (334) is connected to the flow channel (204) by means of a fluid connection (400) in a flow-conducting manner in order to discharge a refrigerant (12) exiting from the heat pump heat exchanger (332) into the heat exchanger housing (334) into the flow channel (204).

The invention relates to the technical field of energy conversion, and discloses a cascade energy utilization system, a scheduling control method and device, equipment and a medium. The system comprises a photovoltaic power generation module, an electric heater, a hot molten salt tank, a cold molten salt tank, a steam generator, a primary heat exchanger, a secondary heat exchanger, a first water source heat pump unit, a second water source heat pump unit, a plurality of valves and a control module, wherein the valves comprise a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve and a seventh valve. The system provided by the invention aims at an energy system of a sewage treatment plant, high photovoltaic abandoned light, low efficiency of heat pumps, waste heat waste and island operation pain points, depends on photovoltaic energy, fused salt heat storage, a two-stage heat exchanger, double heat pumps and a dynamic control framework, stores photovoltaic energy by utilizing a fused salt heat storage system, preheats sewage through the two-stage heat exchanger, improves COP of the heat pumps, and reduces the energy consumption of the heat pumps. Waste heat is fully utilized, and dependence on a power grid is reduced.

The invention relates to the technical field of central heating, and discloses a primary network heat supply flow balance adjustment and primary pipe network resistance reduction system operation method, which comprises the following steps: accurately calculating the final target flow of each branch pipeline through a flow demand evaluation model integrating static physical parameters and dynamic operation parameters; and then, a two-stage strategy of coarse adjustment and fine adjustment is adopted, a specific cooperative operation principle is followed, and standardized operation is conducted on the adjusting valve, so that the actual flow accurately approaches the target flow. In order to solve the intractable problem that the flow still does not reach the standard after the adjusting valve is fully opened due to physical blockage, the method further comprises closed-loop monitoring and intelligent diagnosis, faults such as insufficient flow or low heat exchange efficiency can be automatically recognized, and a flow distribution model is fed back and optimized. Accurate distribution of heat supply flow is achieved, the problem of intractable blockage of a pipe network is effectively solved, and the operation efficiency and heat supply quality of a heat supply system are remarkably improved.

To significantly improve the combustion of a fuel gas containing at least 95% hydrogen by volume in a gas burner (10) for heating purposes, a burner body (16) for the gas burner (10) has been proposed, which, as a burner surface (38) for the passage of a premixed fuel gas-air mixture into a combustion chamber (14), has a perforated metal surface (40) which has through holes (48) such that less than 5% of the burner surface (38) is open. wherein the through holes (48) have hole diameters D with 0.4 mm ≤ D ≤ 1.0 mm, wherein the hole diameters D and / or hole lengths of the through holes vary.

The invention discloses a regional heat supply system energy-saving optimization technology based on multi-dimensional intelligent prediction and cooperative regulation, which comprises the following steps: (1) establishing a heat consumer side mathematical model of a regional heat supply system, covering a heat exchanger, a secondary pipeline, a radiator and a building envelope structure, and obtaining an indoor temperature dynamic response model; (2) collecting multi-dimensional data such as primary and secondary loop temperature, pressure, flow, valve opening and indoor and outdoor environment in real time; (3) constructing an intelligent prediction model based on CNN and FCM, optimizing hyper-parameters by using BKA, and realizing high-precision short-term prediction of the water supply temperature of the secondary loop; (4) taking a prediction result as a target, and adopting a WOA regulated PID controller to accurately regulate a primary loop flow valve; and (5) dynamically adjusting the rotating speed of a secondary side water pump according to the temperature difference of supply water and return water of a secondary loop, optimizing system heat distribution and realizing real-time load adaptation. According to the invention, the problem of disjunction of regional heat supply prediction and regulation is solved, and a new method for realizing accurate temperature control and energy conservation is provided.

The invention relates to the field of energy conservation and emission reduction, in particular to a zero-carbon building which comprises a building body, and a heat preservation structure is arranged outside the building body. The carbon dioxide refrigerating and heating system comprises a carbon dioxide system host and a pipeline communicated with the carbon dioxide system host, the carbon dioxide system host is used for converting carbon dioxide, and the pipeline is used for outputting carbon dioxide; the solar cell panel is mounted outside the building main body and supplies power to the host; the heat collector is mounted outside the building main body, so that the carbon dioxide refrigerating and heating system exchanges heat with the outside; the energy accumulator is used for storing heat of the heat collector and / or the carbon dioxide refrigerating and heating system and providing heat for the carbon dioxide refrigerating and heating system; and the energy consumption pieces are all mounted in the building main body and exchange heat with the high-temperature and high-pressure gaseous carbon dioxide or the low-temperature and low-pressure liquid carbon dioxide. The method has the effect of reducing the carbon emission in the daily use process of building facilities.

According to the air source heat pump two-stage heating system, an air source heat pump unit compresses a low-temperature and low-pressure refrigerant into high-temperature and high-pressure gas through a compressor, and heat is transferred to outdoor air / circulating water through a water side / air side heat exchanger. The first-stage heating system is connected with the air energy collecting device and used for primarily increasing the water temperature; the second-stage heating system is connected with the first-stage heating system and is used for further raising the water temperature to the required supply temperature; according to the system, through a series-parallel connection two-stage heating mechanism of air energy, the system flow is effectively reduced, matching with an existing heating system with a small pipe diameter becomes possible, the temperature of supplied water and returned water is remarkably increased, and therefore the good tail end heating effect is ensured.

The utility model discloses a fabricated building floor structure which comprises a foundation layer, a ceramic tile floor is installed above the foundation layer and supported through a plurality of supporting pieces, and each supporting piece comprises a lower supporting piece and an upper supporting piece which are in threaded connection. Fasteners are installed between the adjacent ceramic tile floors and fixedly connected to the tops of the supporting pieces. A foam filling layer is arranged between the ceramic tile floor and the base layer, and a pipeline is arranged in the foam filling layer; a main body of the fastener is of a U-shaped structure, and inserting plates are arranged on the left side and the right side of the opening end of the U-shaped structure respectively and inserted into inserting grooves in the ends of the tile floor. A plurality of inserting grooves of a rectangular structure are machined in the end portion of the ceramic tile floor. According to the fabricated building floor structure, the floor can be conveniently leveled in the installation process, the flatness after installation is guaranteed, and pipelines can be conveniently arranged and installed.

A heat pump device (1) comprises a refrigerant circuit (11), an electric heater (EH), a switching valve (Vt), and a control unit (15). The electric heater (EH) is disposed inside a hot water storage tank (HWT) that accommodates a heat exchange coil (HC) provided in a branch pipeline (17) that branches from a utilization pipeline (13) that allows a utilization fluid (Fu) to pass through a first heat exchanger (112) of the refrigerant circuit (11). The switching valve (Vt) is provided in the utilization pipeline (13), and switches between a first state in which an upstream side and a downstream side of the utilization pipeline (13) communicate with each other, and a second state in which the upstream side of the utilization pipeline (13) and the branch pipeline (17) communicate with each other. The control unit (15) executes a first mode in which a switching mechanism (116) of the refrigerant circuit (11) is controlled to perform a cooling operation, and at the same time, the switching valve (Vt) is controlled to be a first state such that the electric heater (EH) is energized to heat water stored in the hot water storage tank (HWT).

A geothermal system exchanges heat between ground which receives geogenic heat 1 from below and a target 7, comprises a continuous loop of heat exchange tubing 3 placed in a region of the ground and s

The invention relates to an air conditioning system (10) that provides simultaneous domestic hot water heating and defrosting operation support to a heat pump (40).

The application discloses an air-conditioning floor heating system and a control method thereof, wherein the air-conditioning floor heating system comprises a floor heating coil pipe for heating a room; an air-conditioning unit comprising a compressor, an evaporator, a throttling device and a condenser connected in sequence, the condenser is in heat exchange with a water inlet pipe of the floor heating coil pipe to supply heat for the floor heating coil pipe; a bypass pipeline is arranged in parallel with the condenser and is used for bypassing part of refrigerant discharged by the compressor; and a heat storage water tank, the bypass pipeline passes through the heat storage water tank and is used for heating water in the heat storage water tank, the water in the heat storage water tank is in heat exchange with the water inlet pipe of the floor heating coil pipe to heat water inlet of the floor heating coil pipe. The application solves the problem of water resource waste or high energy consumption in the anti-freezing mode of the air-conditioning floor heating system in the prior art, prevents the floor heating coil pipe from being damaged due to internal water freezing expansion, improves the anti-freezing property and operation stability of the floor heating coil pipe, and achieves the effects of saving water resource and saving energy consumption.